Overview:1. Pen lead
Colour: Blue 2. Able to doodle on paper, clothes, sheet, furniture, wall & any other smoothsurface 3. The handwriting disappears without any mark within 24hours 4. As advanced water decomposition technology is adopted, our pen is non-toxic, harmless & pollution-free. Specification: Weight Approx:11.6g Size Approx:14 x 1.2 x 1.2